AME8806 Datasheet, PDF (1/12 Pages) Analog Microelectronics – 600mA CMOS LDO

Analog Microelectronics, Inc.
AME8806 / 8809 / 8842
600mA CMOS LDO
n General Description
The AME8806/8809 family of positive, linear regula-
tors feature low quiescent current (30µA typ.) with low
dropout voltage, making them ideal for battery applica-
tions. The space-saving SO-8 package is attractive for
"Pocket" and "Hand Held" applications.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under
the "Worst" of operating conditions.
In applications requiring a low noise, regulated supply,
place a 1000 pF capacitor between Bypass and ground.
The AME8806/8809 is stable with an output capacitance
of 2.2µF or greater.
n Features
l Very Low Dropout Voltage
l Guaranteed 600mA Output
l Accurate to within 1.5%
l 30µA Quiescent Current
l Over-Temperature Shutdown
l Current Limiting
l Short Circuit Current Fold-back
l Noise Reduction Bypass Capacitor
l Power-Saving Shutdown Mode
l Space-Saving SO-8 Package
l Factory Pre-set Output Voltages
l Low Temperature Coefficient
n Functional Block Diagram
IN
OUT
Overcurrent
Shutdown
Thermal
Shutdown
EN
BYP
R1
AMP
n Applications
l Instrumentation
l Portable Electronics
l Wireless Devices
l Cordless Phones
l PC Peripherals
l Battery Powered Widgets
l Electronic Scales
n Typical Application
IN
IN
OUT
AME8806
AME8809
BYP _GND
EN
C1 C2
5V
1µF ^1µF
OUT
C3
2.2 µF
V _ref= 1 . 2 1 5 V
R2
GND
1